Question

calcule a raiz=y=ײ-4×+4​

Answer 1

Explicação passo-a-passo:

ax² + bx + c = 0

a= 1

b= -4

c= 4

∆=b² - 4.a.c

∆= (-4)² - 4.1.4

∆=16 - 16

∆=0

x1 = -b + √ ∆/ 2a

x1 = -(-4) + √0 / 2.1

x1 = 4 /2

x1 = 2

x2 = -b - √∆/2a

x2 = -(-4) - 0/2.1

x2 = 4/2

x2 = 2.

S = { 2}